jianpan.c

语音芯片ISD1420的C语言程序

#include"reg51.h"
#define unchar unsigned char
#define uint unsigned int
//#define dizhi1 0x00
//#define dizhi2 0x20
//#define dizhi3 0x40
//#define dizhi4 0x80
uint danyuan[]={8,16,24,32,40,48,56,64,72,80};
void  delay();
unchar keyscan();
uint i=0;
sbit play=P0^0;
sbit lu=P0^1;
//sbit reday=P0^2;
//sbit a0=P2^0;
//sbit a1=P2^1;
//sbit a3=P2^3;
//sbit a4=P2^4;
//void zhongduan( ) interrupt 1
//{ i++ ;
//}
void delay1( )
{
   uint a,j;
   for(a=0;a<1000;a++)
   {
      for(j=0;j<400;i++)
	  {;}
	}
}
/*void moshi(uint a )
{ 
  P2=a;
 } */

void luyin(uint b )
{  P2=b;
 //  TR0=1;
      lu=0;


 //  if(i==100)
 //  {
//     lu=1;
//	}

 }

void fangyin(uint c )
{  P2=c;
   play=1;
   delay( );
   play=0;
   delay( );
 //  while(!reday) ;

}
     
void   main()
{  unchar key;
 //  TMOD=0x00;
  // TH0=0xdc;
  // TL0=0x00;
  // EA=1;
  // ET0=1;
   P2=0x00;
   
   while (1)
  {
     key=keyscan();
     switch(key)
     {
	   case 0x18:	   
	   i++;
	   if(i==10) i=0;
	   break;
       case 0x14:
	   i--;
	   if(i==0) i=10;
	   break;
	   case 0x12:
	   luyin(danyuan[i]);
	   break;
	   case 0x11:
	   fangyin(danyuan[i]);
	   break;
	 
	   case 0x28:
	   fangyin(danyuan[i]);
	   delay( );
	   fangyin(danyuan[i+3]);
	   break;
 //      case 0x24:fangyin(dizhi2,dizhi4);break;
//	   case 0x22:P2=0x7d;break;
//	   case 0x21:P2=0x07;break;
	 
//	   case 0x48:P2=0x7f;break;
 //      case 0x44:P2=0x6f;break;
//	   case 0x42:P2=0x77;break;
//	   case 0x41:P2=0x7c;break;

//	   case 0x88:P2=0x39;break;
  //     case 0x84:P2=0x5e;break;
//	   case 0x82:P2=0x79;break;
//	   case 0x81:P2=0x71;break;
//	   case 0x00:P2=0x76;break;
	   default: break;
	}

  }
} 

 void  delay()
  {
  	unchar i;
	for(i=500;i>0;i--);
   }
 unchar keyscan()
{
    unchar scode,recode;
	static unchar m;
    P1=0xf0;
	if ((P1&0xf0)!=0xf0)
	 { 
	    delay();
	    if ((P1&0xf0)!=0xf0)		 
	     { 
		    scode=0xfe;
		    while((scode&0x10)!=0)  
		    { 
		       P1=scode;
		       if((P1&0xf0)!=0xf0)
		         { 
			        recode=(P1&0xf0)|0x0f;
					m=(~scode)+(~recode);
			        return (m);
			     }
		      else 
				  scode=(scode<<1)|0x01;
		    }
	     }

	  
	  }
	   if((P1&0xf0)==0xf0) return(0);
	   return(m);
}